Ford van r134 capacity

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  #1  
Old 07-08-07, 01:08 PM
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Ford van r134 capacity

I just bought a 1990 Ford E150 Jayco conv. van with rear a/c
Anyone know the approx. freon capacity
Thanks
 
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  #2  
Old 07-08-07, 02:58 PM
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You'll need to go by the gauges on the equipment you're charging it with. If you are completely out of 134 the system would have to be vacuumed down to remove moisture. If you just have lower AC performance and need to add some 134, you can get a cheap set of gauges along with a couple of cans at Autozone or O-Reilly's and fill to the level the gauges indicate.

Hope this helps,

Bob
 
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Old 07-08-07, 07:04 PM
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The system was way low,almost empty.
The gauges I was going to use are still the 12 type and I have snap on adapters for the 134 from MAC but only seem to connect to my GM pick up.Wont hook up to ford or Chrysler.I quess I should go with the screw on couplers, with a new set of gauges, they seem to fit all.
Thanks
 
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Old 07-08-07, 07:22 PM
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All 134 systems have to have the same connector. How did you test the pressure?
 
  #5  
Old 07-09-07, 02:58 PM
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Actually I couldnt
I did use a small screw driver to depress the high side port and very little pressure if ant released.I know the 134 should be the same but I think its the adapters I bought from mac tools.Both H & L sides seem to be a fraction too big to allow snap quick couplers to attach.I do know that the ones that have the large screw down knob style have a little play in them untill you run down the thumb wheels and they tighten right up.I bought these back when 134 started to come around and have had not much luck getting them to fit often
 
  #6  
Old 07-10-07, 05:36 PM
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Well, here is where I am at
I replaced 2 o-rings on the low pressure side,had oil leaking after just a few minutes of run time.(the quick connectors as previous) I think are bad-purchased before the R134 FITTING, I bet was size standardized.In vacuum after 1 hr it drew down to -28 and held in lock up for 30 min.I charged with 4 of the 12oz cans (3lb) and it is cooling somewhat.Low pressure side at 30 and high side at 160 if spraying the condensor down with water every so often.Right now temps are in the 90's
If I let it run without cooling the pressure down with water the high side will run around 225 and low at 30.Just wondering if this dual set up might be around the 4-5lb range.Thanks
 
  #7  
Old 07-11-07, 10:35 AM
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If you are going to use gauges that were used for 12 or 22 you will damage the seals in the compressor.

They use a different oil from 12 or 22 to 134 You need a set of 134 gauges.

There is also a sight glass on the liquid side. When you stop seeing the bubbles then it is full.
 
  #8  
Old 07-11-07, 12:30 PM
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it calls for 4.25 lbs of R12 not 134 was complat conversion done if not you are certinly looking for a system failer
 
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